Answer:
sinθ = 4/5
Step-by-step explanation:
The given point is (-3,4). This point lies in the second quadrant.
In second quadrant, sinθ is positive.
Now, please see the attached image.
The point (-3,4) is at A. The hypotenuse OA can be found by using the Pythagorean theorem.
Now, in triangle AOB,
Thus, we have
sinθ = 4/5
Answer : value of x and y in the matrix equation is:
x = -3
y = +4, -4
Step-by-step explanation :
The matrix expression is:
First we have to add left hand side matrix.
Now we have to add left hand side terms.
Now we have to equating left hand side matrix to right hand matrix, we get:
Therefore, the value of x and y in the matrix equation is -3 and +4, -4 respectively.
Answer: 1.) Irrational (because its not terminal)
2.)
